[TowerTalk] Concrete anchors

[Cqtestk4xs at aol.com]

I'm a little bit skeptical of this issue...

a typical tower 120'  tower using 80% radius for guying at 3 points is going
to have a guting  radius of 240% for the bottom set of guys... at which point
tension is  getting close to the max at the bottom set of guys. One would
expect that the  tower would easily handle this tension............de VE2DC
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......but, if you check your Rohn book, you will notice the lower guys are  
usually one step down in size.  If the upper ones are 1/4, the lower  ones are 
3/16.  Therefore, less tension when tightening the guys on the  bottom....less 
pull.
 
Also on taller towers, when two different anchor points are necessary, the  
lower bank goes back to approximately 80 per cent of the height of the  highest 
member of the lower bank, AND they are also one size  smaller...less pull.
 
I'm no engineer, but it does make sense.
 
Bill K4XS